01124390

Component

https://doi.org/10.3141/2116-14

http://scholar.google.com...artl&publication_year=2009

Porous asphalt (PA) has been widely used in many countries because of its positive benefits, such as efficient water drainage, improved safety in wet weather conditions, and noise reduction. However, the attractive features of PA do not last long because of clogging, stripping, and accelerated aging. Application of fiber reinforcement materials can be a possible solution to the structural weakness in PA pavements. Fatigue of fiber-reinforced PA composite systems was investigated with a model mobile load simulator (MMLS). Carbon fiber reinforcement polymer (FRP) grids were used to strengthen the fatigue resistance of PA. FRP grids were placed between two asphalt layers as a reinforcement interlayer. The dynamic fatigue traffic loadings were applied on the top surface of reinforced specimens to investigate the performance improvement by reinforcement materials. These fatigue tests were conducted under four different conditions: absence and presence of reinforcement at dry conditions and wet conditions. The stiffness difference between unaged and aged specimens was 25% at minimum and 55% at maximum. The surface deflection of PA was successfully reduced by 23% at dry and by 48% at wet conditions by using interlaid carbon FRP grids. In addition, the reinforcement layer could increase the fatigue life by 23% at dry and by 27% at wet conditions based on MMLS test results.

01147419

09-1197

English

pp 108-117

2009

Transportation Research Record: Journal of the Transportation Research Board

9780309126311

Print

Figures; Photos; References (16) ; Tables (4)

Carbon fibers; Deflection; Fatigue (Mechanics); Fiber reinforced plastics; Friction course; Geogrids; Material reinforcement; Open graded aggregates; Stiffness; Surface drainage; Traffic loads

Interlayers (Pavements); Model mobile load simulators

Geotechnology; Highways; Materials; Pavements; I22: Design of Pavements, Railways and Guideways; I33: Other Materials used in Pavement Layers

TRIS, TRB, ATRI

Jan 30 2009 5:24PM

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• Horizontal Drains in a Clay–Landslide Stabilization Test Program
• Instrumented Rollers to Assess Construction Quality on Texas Projects
• North Carolina Department of Transportation’s Practice and Experience with Design–Build Contracts: Geotechnical Perspective
• Stiffness-Based Assessment of Pavement Foundation Materials Using Portable Tools